In a container, two types of liquids P and Q are in the ratio of 3 : 7. If 10 litres mixture is drawn off from the container and filled with 6 litres of liquid Q,then the ratio of P and Q becomes 1 : 3. What was the original quantity (in litres) of mixture?
In the early 7th century, 610 A.D Islam was founded and Prophet Muhammad was accredited for its origin. It is beleived that it was first origined in Mecca and Medina.